Wonderful game. I love the art style and gameplay. The typewriter was very fun to use. I spent quite a while looking for secrets. Besides the three necessary things, I found:
-"Picture" of a house
-"Carpet"
-"Window" which makes two boarded-up windows
-"Helium" from the earlier games
-"Chair" besides the one you-know-who appears in
-"Lamp" to get a cool futuristic lamp